How much are my dads bikes worth?

[Kp]

Hello, I am trying to find out how much my dads bikes are worth. We have a Triumph Tiger 90 1963 in mint condition in white (THINK ITS A 250cc).  We also have a BSA Bantam Starfire 250cc also in mint condition in Navy Blue (not sure of year but I can check!)

I would really appreciate a response if anyone has an idea of the value of one or both of our bikes.
Thanks,
Kp.

[L.A.B.]

We have a Triumph Tiger 90 1963 in mint condition in white (THINK ITS A 250cc).

A Tiger 90 should be 350cc. 

We also have a BSA Bantam Starfire 250cc

A Bantam is a different model to a Starfire, are you sure you have described this correctly?

Or is this bike some kind of a hybrid? (have parts from a Bantam and Starfire been used to build the bike).